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The outside diameter of schedule 40 black iron pipe is approximately: Select one: A. 3/16 inch larger than the pipe's nominal size. B. The same size as the pipe's nominal size. C. ¼ inch larger than the pipe's nominal size. D. 1/8 inch larger than the pipe's nominal size.



Answer :

Answer:

The outside diameter of schedule 40 black iron pipe is typically larger than the pipe’s nominal size. To be precise, the outside diameter is not a fixed amount larger than the nominal size across all sizes of pipes. It varies depending on the nominal size of the pipe. For example, for a nominal pipe size of 1 inch, the outside diameter is 1.315 inches1. Therefore, the correct answer would be:

C. ¼ inch larger than the pipe’s nominal size.

This is a general approximation, as the actual difference may vary slightly based on the specific dimensions and manufacturing standards. It’s always best to refer to detailed specifications for the exact measurements.

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